VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-06-02 06:04:39 -04:00
Code Issues Projects Releases Wiki Activity

Added infradyne or supradyne option when decimating

Browse Source
This commit is contained in:
f4exb
2015-07-02 01:00:27 +02:00
parent f2af402087
commit 637c6e74f7
7 changed files with 292 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files
plugins/samplesource/bladerf/bladerfinput.cpp
+40 -4
View File
@@ -34,6 +34,7 @@ BladerfInput::Settings::Settings() :
m_samplerate(3072000),
m_bandwidth(1500000),
m_log2Decim(0),
m_fcPos(FC_POS_INFRA),
m_xb200(false),
m_xb200Path(BLADERF_XB200_MIX),
m_xb200Filter(BLADERF_XB200_AUTO_1DB)
@@ -48,6 +49,7 @@ void BladerfInput::Settings::resetToDefaults()
m_samplerate = 3072000;
m_bandwidth = 1500000;
m_log2Decim = 0;
m_fcPos = FC_POS_INFRA;
m_xb200 = false;
m_xb200Path = BLADERF_XB200_MIX;
m_xb200Filter = BLADERF_XB200_AUTO_1DB;
@@ -65,6 +67,7 @@ QByteArray BladerfInput::Settings::serialize() const
s.writeS32(7, (int) m_xb200Path);
s.writeS32(8, (int) m_xb200Filter);
s.writeS32(9, m_bandwidth);
s.writeS32(10, (int) m_fcPos);
return s.final();
}
@@ -90,6 +93,8 @@ bool BladerfInput::Settings::deserialize(const QByteArray& data)
d.readS32(8, &intval);
m_xb200Filter = (bladerf_xb200_filter) intval;
d.readS32(9, &m_bandwidth, 0);
d.readS32(10, &intval, 0);
m_fcPos = (fcPos_t) intval;
return true;
} else {
resetToDefaults();
@@ -332,19 +337,50 @@ bool BladerfInput::applySettings(const GeneralSettings& generalSettings, const S
}
}
if((m_settings.m_fcPos != settings.m_fcPos) || force) {
if(m_dev != NULL) {
m_settings.m_fcPos = settings.m_fcPos;
m_bladerfThread->setFcPos((int) settings.m_fcPos);
std::cerr << "BladerfInput: set fc pos (enum) to " << (int) m_settings.m_fcPos << std::endl;
}
}
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
if(m_dev != NULL) {
qint64 centerFrequency = m_generalSettings.m_centerFrequency + (m_settings.m_samplerate / 4);
qint64 centerFrequency = m_generalSettings.m_centerFrequency;
qint64 f_img = centerFrequency;
qint64 f_cut = centerFrequency + m_settings.m_bandwidth/2;
if (m_settings.m_log2Decim == 0) { // Little wooby-doop if no decimation
if (m_settings.m_log2Decim == 0)
{ // Little wooby-doop if no decimation
centerFrequency = m_generalSettings.m_centerFrequency;
} else {
centerFrequency = m_generalSettings.m_centerFrequency + (m_settings.m_samplerate / 4);
f_img = centerFrequency;
f_cut = centerFrequency + m_settings.m_bandwidth/2;
}
else
{
if (m_settings.m_fcPos == FC_POS_INFRA) {
centerFrequency = m_generalSettings.m_centerFrequency + (m_settings.m_samplerate / 4);
f_img = centerFrequency + m_settings.m_samplerate/2;
f_cut = centerFrequency + m_settings.m_bandwidth/2;
} else if (m_settings.m_fcPos == FC_POS_SUPRA) {
centerFrequency = m_generalSettings.m_centerFrequency - (m_settings.m_samplerate / 4);
f_img = centerFrequency - m_settings.m_samplerate/2;
f_cut = centerFrequency - m_settings.m_bandwidth/2;
}
}
if(bladerf_set_frequency( m_dev, BLADERF_MODULE_RX, centerFrequency ) != 0) {
qDebug("bladerf_set_frequency(%lld) failed", m_generalSettings.m_centerFrequency);
}
std::cerr << "BladerfInput: center freq: " << m_generalSettings.m_centerFrequency << " Hz"
<< " RF center freq: " << centerFrequency << " Hz"
<< " sample rate / 2 : " << m_settings.m_samplerate/2 << "Hz"
<< " BW: " << m_settings.m_bandwidth << "Hz"
<< " img: " << f_img << "Hz"
<< " cut: " << f_cut << "Hz"
<< " img - cut: " << f_img - f_cut << std::endl;
}
return true;